Shock: Damage Boundary Shock damage to products results from excessive internal stress induced by inertia forces - Since F=ma, shock fragility is characterized by the maximum tolerable acceleration level, i. e, how many g’s the item can withstand. - Why damaged? - How to reduce g’s ? The packaging material changes the shock pulse delivered to the product so that the maximum acceleration is greatly reduced (and the pulse duration is many times longer). - The package designer’s goal: To be sure that the g-level transmitted to the item by the cushion is less that the g-level which will cause the item to fail.Shock: Damage Boundary Shock damage to products results from excessive internal stress induced by inertia forces - Since F=ma, shock fragility is characterized by the maximum tolerable acceleration level, i. e, how many g’s the item can withstand. - Why damaged? - How to reduce g’s ? The packaging material changes the shock pulse delivered to the product so that the maximum acceleration is greatly reduced (and the pulse duration is many times longer). - The package designer’s goal: To be sure that the g-level transmitted to the item by the cushion is less that the g-level which will cause the item to fail